/*
 *
 * Copyright (C) 2012 Walter Lütgenau
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 */
package offset.nodes.server.virtual.controller.dispatch;

import javax.jcr.Node;
import javax.jcr.RepositoryException;
import javax.jcr.Session;
import javax.servlet.http.HttpServletRequest;
import offset.nodes.Constants;
import offset.nodes.server.controller.AttributeConstants;
import offset.nodes.server.controller.contentType.ContentTypeMapper;
import offset.nodes.server.virtual.model.VirtualModel;

/**
 *
 * @author Walter L�tgenau
 */
public class DefaultTemplateInstanceMapper implements ContentTypeMapper {

    /**
     * Implements the ContentTypeMapper interface for node types, that have a default template instance configured.
     * 
     * @param node
     * @param request
     * @return
     * @throws RepositoryException
     */
    @Override
    public String getContentType(Node node, HttpServletRequest request) throws RepositoryException {
        if (node == null)
            return null;

        Session session = (Session) request.getSession().getAttribute(AttributeConstants.ATT_REPOSITORY_SESSION);
        VirtualModel model = new VirtualModel(session);
        String defaultTemplateInstanceUuid = model.getDefaultTemplateUUID(node.getPrimaryNodeType().getName());
        if (defaultTemplateInstanceUuid != null) {
            VirtualDispatchAttribute att = new VirtualDispatchAttribute(node.getPrimaryNodeType().getName(), defaultTemplateInstanceUuid);
            request.setAttribute(att.getId(), att);

            return Constants.CONTENT_TYPE_VIRTUAL;
        }

        return null;
    }
}
